Occurred on November 8, 2017 Portage, Michigan, USAbr br Info from Licensor: "I noticed lots of leaves falling from a tree in my backyard during the first frosty morning of winter and went out to take a look. When I went outside, the sounds and sight of thousands of of falling frozen leaves was something i had never seen before. By the end of the day, the tree was empty, and there was a giant pile of frozen green leaves on the ground.